ChartSheet Class (2007 System)
A host item is a worksheet in Excel that contains only a chart and exposes events.
Assembly: Microsoft.Office.Tools.Excel.v9.0 (in Microsoft.Office.Tools.Excel.v9.0.dll)
A represents a chart sheet; that is, a worksheet that contains only a chart. If you want to create an embedded chart in a worksheet that also contains other items, such as cells or other controls, create a Chart instead.
A provides all the chart-related features of a native Chart object in the Excel object model. However, a also exposes events. You can create objects only in a document-level project at design time. For more information, see ChartSheet Host Item.